PHILADELPHIA — Renaissance architects demonstrated their understanding of geometry and physics when they built whispering galleries into their cathedrals. These circular chambers were designed to amplify and direct sound waves so that, when standing in the right spot, a whisper could be heard from across the room. Now, scientists at the University of Pennsylvania have applied the same principle on the nanoscale to drastically reduce emission lifetime, a key property of semiconductors, which can lead to the development of new ultrafast photonic devices.
School of Engineering & Applied Science
Kenneth Foster of the School of Engineering and Applied Science is interviewed about his research on health and radio-frequency energy.
PHILADELPHIA — Humans produce billions of clot-forming platelets every day, but there are times when there aren’t enough of them, such as with certain diseases or during invasive surgery. Now, University of Pennsylvania researchers have demonstrated that a single drug can induce bone marrow cells called megakaryocytes to quadruple the number of platelets they produce.
PHILADELPHIA -– Two faculty members from the University of Pennsylvania’s School of Engineering and Applied Science will be participating in the 17th annual Frontiers of Engineering Symposium in September. The exclusive meeting is held by the National Academy of Engineering and will take place at Google Headquarters in Mountain View, Calif.
Ritesh Agarwal of the School of Engineering and Applied Science is cited for his research.
PHILADELPHIA—New engineering research at the University of Pennsylvania demonstrates that polaritons have increased coupling strength when confined to nanoscale semiconductors. This represents a promising advance in the field of photonics: smaller and faster circuits that use light rather than electricity.
PHILADELPHIA -- Two University of Pennsylvania engineers have proposed the possibility of two-dimensional metamaterials. These one-atom-thick metamaterials could be achieved by controlling the conductivity of sheets of graphene, which is a single layer of carbon atoms.